[products]Free Trial giving persistent error message

Hi, I've signed up for Alibaba Cloud yesterday but I'm still unable to give my Free Trial a try. Anytime I try to sign up for "ECS Burstable Type t5" (the 12 months free trial option) I get the following error message in a popup screen:

"Sorry, your operation failed. Please try again or change your configurations."

I tried to change configurations and set the datacenter to other locations but it didn't help.

Hi, thanks for your response, but even filling that form doesn't work. The submit button does nothing.

I can't try this service, so  I can't be willing to pay for it eventually... Almost giving up.

Hi. I'm using Firefox in private window already (also tried non private). I can't use another browser for this, so this is the only one I'll be using.

I saw the contact numbers, but I'm not in any of the regions listed, so I simply ignored it, since the form is better suited for global communication.